Hello,

there is a Problem in our Environment with our ESXi-Servers and PRTG.

We were able to configure PRTG-Sensors for VMware Hardware status and it was working fine for 4-5 Months. Now the Sensor keeps saying:

No Response (PE002)

There was no change in our Environment. We did a reboot of the ESXi-Servers, restarted the CIM-Agent but none of those Workarounds work. Are you able to help us?

Article Comments

Hello Zkuld


The PE002 error normally refers to a DNS resolution error.

Do you have other sensors on the device (HTTP, Ping, ...) ?
Do they keep working or do they also fail?

What version of PRTG are you running and what's your scanning interval for the sensors on that host? And when you say servers, do you have many sensors/servers with the same error?

Best Regards,


Jul, 2015 - Permalink

HTTP, Ping are good. only get a DNS error


Dec, 2015 - Permalink

Hello bagekfidel,
thank you for your reply.

What version of PRTG are you running and what's your scanning interval for the sensors on that host? And when you say servers, do you have many sensors/servers with the same error?

Best Regards,


Dec, 2015 - Permalink

Hello Guys,

I have same issue from Today. All VMWare hosts, devices sensors have PE002 Alert. Only HTTPS or Ping working. SSL sensors too.

It's only from one probe, it's also the core server. Current version : 22.1.75.1594+

No modification have been did on DNS or credentials.


Apr, 2022 - Permalink

Hello ThomasV,

I would suggest that you open a support ticket, so that we can have a closer look at the issue.

Kind regards,
Sasa Ignjatovic, Tech Support Team


Apr, 2022 - Permalink